The drawings are often on official documents, such as a fire-breathing dragon/dog sneaking up on what appears to be the president sketched on a memo debating UN sanctions on Yugoslavia.

The president also doodled lots of brick walls, partial motorcycles and versions of the American flag.

Presidential libraries often release their respective presidents' drawings post-White House, but the Clinton Foundation has refused to do so, even at the request of the authors of a book “Presidential Doodles.”

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Earlier this year, Guccifer hacked into President George W. Bush's drawings and released a portrait of the president in a shower.